Abstract
The aim of this study is to analyze the scientific literature data on the frequency and characteristics of infectious complications during the treatment of patients with lymphoproliferative diseases with a new class of drugs, selective inhibitors of Brutons tyrosine kinase (BTK). This work describes the indications for appointing these drugs as well as the participation of BTK in the development and activation of B cells. We have studied the main characteristics of BTK inhibitors used in clinical practice and associated disorders in the activity of off-target tyrosine kinases. The work describes the main types of known infectious complications developing during the treatment with the drugs of this group, the period of their appearance, and characteristic pathogens.